WESTERN Sydney Conservation Alliance president Geoff Brown has vowed to keep fighting to prevent the last wild emu population living in western Sydney from being relocated by a housing developer.

The Western Sydney Conservation Alliance conducted a survey at the Greener Living Expo in May, calling on politicians to stop the native animals from being moved out of a federal government-owned site in St Marys, which is currently managed by Lend Lease.

The poll also calls on the state government to scrap its regional park plans and set the entire 900 hectares as a nature reserve to protect the emu habitat and other wildlife on the site.

Mr Brown said he had received widespread community support for a nature reserve.

"We had 158 people fill out the survey," he said.

"Ninety-two per cent of people said 'no' the NSW government was not adequately protecting western Sydney's environment and bushland remnants.

"Ninety-six per cent of people thought the NSW government should protect key bushland as nature reserve.

"One hundred per cent of people said they wanted a nature reserve and not a regional park for the ADI site."

Mr Brown has written to Londonderry MP Bart Bassett asking that he represent his community's point of view.

"Despite requests to meet and advance scrapping the regional park plans, Mr Bassett is refusing to meet on the issue," he said.

"Despite claims of being willing to protect the emus, Mr Bassett's support of a regional park is actually support for removing Sydney's last wild emus."

However, Mr Bassett said he was committed to keeping the emus at the ADI site as long as they met the carrying capacity of the site.

"I attended both public meetings in relation to the emus and the future of a regional park," Mr Bassett said.

"So the suggestion that I have been unwilling to meet on the matter is untrue," Mr Bassett said. "I've also remained in contact with previous and current ministers for the environment, keeping them fully appraised of the issue.

"It is still my view that a regional park under the management of National Parks can balance the safety of flora and fauna and still provide access to the public."